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Finding the Fourth Proportional to 201,502, 278,072.75 and 110,856.02

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Solution

The fourth proportional to 201,502, 278,072.75 and 110,856.02 is: 152,981.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,502 : 278,072.75 = 110,856.02 : x
  2. Step 2: Convert to fraction form
    201,502/278,072.75 = 110,856.02/x
  3. Step 3: Cross multiply
    201,502x = 278,072.75 × 110,856.02
  4. Step 4: Simplify right side
    201,502x = 30,826,038,335.46
  5. Step 5: Solve for x
    x = 30,826,038,335.46/201,502
  6. Step 6: Final answer
    x = 152,981.30

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.